Trougot Schwarz, a craftsman (Handwerker) from Saxony, and his family settled in the Volga German colony of Norka on 15 August 1767. They are recorded there on the 1767 census in Household No. 161.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Nr105.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 272.